System Status: health, storage, retention & disk
A new System Status tab (under Settings) gives operators an at-a-glance view of the backend's health.
- Component health — hub, ClickHouse and ingestion, with last-data freshness.
- Storage per signal — rows, on-disk size, compression ratio, data-since and retention (days) for traces and logs.
- Disk capacity — ClickHouse disk usage with a free/total bar.
Served by /api/v1/system/status, so any client can surface the same numbers.